Generative Fill with AI and 3D
Hey all, You've probably seen projects that add objects to an image from a style or text prompt, like InteriorAI (levelsio) and Adobe Firefly. The prevalent issue with these diffusion-based inpainting approaches is that they don't yet have great conditioning on lighting, perspective, and structure. You'll often get incorrect or generic shadows; warped-looking objects; and distorted backgrounds. What is Fill 3D? Fill 3D is an exploration on doing generative fill in 3D to render ultra-realistic results that harmonize with the background image, using industry-standard path tracing, akin to…
Generative Fill with AI and 3D launched on September 28, 2023 with 360 votes, #79 of 4,228 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Fill 3D is a generative image tool that adds objects to photos by working in three dimensions rather than two. Unlike existing text-based inpainting tools, it uses 3D rendering and path tracing to ensure added objects match the original image's lighting, perspective, and shadows realistically. Users draw rectangles on their image, describe what they want added, and the tool generates photorealistic results that blend seamlessly with the background, similar to professional compositing techniques used in film production.
written from the facts on this page · September 2026
From the sources
Generative fill in 3D. Contribute to fill3d/fill development by creating an account on GitHub.
In the maker’s words, at launch
Hey all, You've probably seen projects that add objects to an image from a style or text prompt, like InteriorAI (levelsio) and Adobe Firefly. The prevalent issue with these diffusion-based inpainting approaches is that they don't yet have great conditioning on lighting, perspective, and structure. You'll often get…
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Source: Show HN post ↗ · launch text quoted in part
